set RCLONE_S3_NO_CHECK_BUCKET to true

[dtenenba]

Recent versions of rclone attempt to create the destination bucket before copying. If the user does not have permission to create buckets (which our users do not, typically), they get an access denied error.

See rclone/rclone#4703 .

The workaround is to either pass --s3-no-check-bucket or set RCLONE_S3_NO_CHECK_BUCKET to true.

[dtenenba]

I just checked and we are still running an old enough version of rclone (v1.47.0) that this behavior is not present. If/when we upgrade we will need to fix this or motuz will break. There is a PR (#407 ) which will update rclone, that should probably address this.
See also https://rclone.org/s3/#s3-no-check-bucket